Finding the Fourth Proportional to 343,771.57, 515,682.20 and 143,890.84
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Solution
The fourth proportional to 343,771.57, 515,682.20 and 143,890.84 is: 215,846.66
Step by Step Solution
- Step 1: Write the proportion equation
343,771.57 : 515,682.20 = 143,890.84 : x - Step 2: Convert to fraction form
343,771.57/515,682.20 = 143,890.84/x - Step 3: Cross multiply
343,771.57x = 515,682.20 × 143,890.84 - Step 4: Simplify right side
343,771.57x = 74,201,944,931.05 - Step 5: Solve for x
x = 74,201,944,931.05/343,771.57 - Step 6: Final answer
x = 215,846.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.